Pioneer TS-W303C

12" · 4 Ω · 160 W · 94.9 dB · datasheet ↗

Thiele-Small parameters

Nominal size	12"
Impedance	4 Ω
Fs	24 Hz
Qts	0.342
Qes	0.353
Qms	11.221
Vas	186.2 L
Sd	498 cm²
Xmax	6 mm
Re	3 Ω
Bl	10.3 T·m
Mms	82.1 g
Pe	160 W
Sensitivity	94.9 dB

Alignment hint

EBP	68 · flexible
Sealed Vb (Qtc ≈ 0.71)	≈ 56.9 L

EBP 50-100: works in either a sealed or ported alignment.

Rules of thumb from T/S parameters only. Verify against a real simulation before cutting wood.

Substitute candidates

Driver	Fs (Hz)	Qts	Vas (L)	Xmax (mm)	Sens (dB)	Fit	Notes	Compare
Dayton Audio SD315A-88	24.2 +0.2	0.335 -0.01	151.7 -34.5	6.4 +0.4	93.7 -1.2	close	120 W vs 160 W: lower power handling	+
Axon 12K01	25 +1	0.289 -0.05	191.8 +5.6	6.7 +0.7	95.4 +0.5	close	125 W vs 160 W: lower power handling	+
Focal 12V 726DB	25.9 +1.9	0.354 +0.01	210.5 +24.3	8.5 +2.5	96 +1.1	close		+
Monacor SPH-300KE vp1	26.5 +2.5	0.357 +0.01	175 -11.2	6.5 +0.5	92.3 -2.6	close	8 Ω vs 4 Ω: amp load changes · 120 W vs 160 W: lower power handling	+
Rockford Fosgate S1-124	28 +4	0.326 -0.02	186 -0.2	9.9 +3.9	96.2 +1.3	close		+
Scan-Speak 32W/4878T01	23 -1	0.286 -0.06	170 -16.2	7 +1	94.5 -0.4	close		+
TVM ARN 312-00/8	22 -2	0.335 -0.01	203 +16.8	6.3 +0.3	90.8 -4.1	close	8 Ω vs 4 Ω: amp load changes · 100 W vs 160 W: lower power handling	+
Dayton Audio ST305-8 Séries II	26.2 +2.2	0.334 -0.01	164 -22.2	8 +2	92.3 -2.6	close	8 Ω vs 4 Ω: amp load changes	+
Great Plains Audio 3124 GPA	26 +2	0.288 -0.05	186.9 +0.7	6.4 +0.4	93.1 -1.8	close	8 Ω vs 4 Ω: amp load changes	+
HiVi F12	25 +1	0.37 +0.03	173.9 -12.3	6 =	90.7 -4.2	close	8 Ω vs 4 Ω: amp load changes · 100 W vs 160 W: lower power handling	+

Compare the closest 3 against the TS-W303C →

Ranked on parameter similarity only (Qts, Fs, Vas, Xmax, sensitivity). Same nominal size required. A hint, not a simulation, model the swap before cutting or buying.

Used in enclosures (0)

No enclosure in the catalog uses this driver yet.